Operating Instructions; Thermostat Connections To The Control Board - York Activa Series User Manual

False start the compressors (connect them just long
enough to make a few turns). To do so, use contactors
-KM1- and -KM2-.
Wait for 5 to 7 minutes and repeat the false start.
Wait another 5 to 7 minutes and perform a last false
start.
Then switch the compressors to full working order.

1.5 Operating instructions

A thermostat is used for starting and managing the air conditioning unit and for adjusting the temperature
of the supply air.
Through this thermostat, the operating programme determines when to automatically start the air con‐
ditioning unit. The performance of the different unit components is also determined by the operating
programme.
Refer to the documentation for the DPC-1 programmable digital thermostat with communication or the
documentation for the thermostat installed with the unit for more detail on start-up and regulation mech‐
anisms.

1.5.1 Thermostat connections to the control board

A. Thermostat connection board.
Board connection terminals
X1. To terminal X1 of the DPC-1 thermostat.
B. White To terminal B of the DPC-1 thermostat.
R. Red. To terminal R of the DPC-1 thermostat.
W.
O/B
Y1
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User manual
Operating instructions
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1.5
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